ci: Combine UBSAN and ASAN by default

I only recently realized this was possible.  While we're still seeing
leaks in the CI environment for some reason, adding ASAN gives us
use-after-free detection etc., which is obviously still very useful
even if we're not doing leak checking.

Closes: #622
Approved by: jlebon

.redhat-ci.Dockerfile

@@ -11,6 +11,8 @@ RUN dnf install -y \
         parallel \
         clang \
         libubsan \
+        libasan \
+        libtsan \
         gnome-desktop-testing \
         redhat-rpm-config \
         elfutils \